Mark Dujsik’s review published on Letterboxd :
Silencio provides a lot of promise but not quite enough payoff. The story revolves around a mysterious, near-magical stone, which is created when radioactive material from a crashed nuclear missile combines with a piece of meteorite in Mexico's semi-legendary "Zone of Silence," an expanse of desert that's akin to the Bermuda Triangle. The stone gives its possessor the ability to travel to and change the past.
See my full review at Mark Reviews Movies.